Ophthalmic instrument with adaptive optic subsystem that measures aberrations (including higher order aberrations) of a human eye and that provides a view of compensation of such aberrations to the human eye
First Claim
1. An ophthalmic instrument for in-vivo examination of a human eye comprising:
- a wavefront sensor that estimates aberrations in reflections of the light formed as an image on the retina of the human eye;
a phase compensator, operably coupled to the wavefront sensor, that spatially modulates the phase of incident light to compensate for said aberrations estimated by the wavefront sensor;
a fixation target; and
optical elements that create an image of the fixation target at the phase compensator, which produces a compensated image of the fixation target that compensates for aberrations estimated by the wavefront sensor, and that recreate at the human eye the compensated image of the fixation target produced by the phase compensator, to thereby provide the human eye with a view of compensation of the aberrations the human eye as estimated by the wavefront sensor.
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Accused Products
Abstract
An improved ophthalmic instrument for in-vivo examination of a human eye including a wavefront sensor that estimates aberrations in reflections of the light formed as an image on the retina of the human eye and a phase compensator that spatially modulates the phase of incident light to compensate for the aberrations estimated by the wavefront sensor Optical elements create an image of a fixation target at the phase compensator, which produces a compensated image of the fixation target that compensates for aberrations estimated by the wavefront sensor. The compensated image of the fixation target produced by the phase compensator is recreated at the human eye to thereby provide the human eye with a view of compensation of the aberrations the human eye as estimated by the wavefront sensor. The phase compensator preferably comprises a variable focus lens that compensates for focusing errors and a deformable mirror that compensates for higher order aberrations. The optical elements preferably comprise a plurality of beam splitters and a plurality of lens groups each functioning as an afocal telescope. In addition, instruments and systems are provided that exploit these capabilities to enable efficient prescription and/or dispensing of corrective optics (e.g., contact lens and glasses).
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Citations
48 Claims
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1. An ophthalmic instrument for in-vivo examination of a human eye comprising:
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a wavefront sensor that estimates aberrations in reflections of the light formed as an image on the retina of the human eye;
a phase compensator, operably coupled to the wavefront sensor, that spatially modulates the phase of incident light to compensate for said aberrations estimated by the wavefront sensor;
a fixation target; and
optical elements that create an image of the fixation target at the phase compensator, which produces a compensated image of the fixation target that compensates for aberrations estimated by the wavefront sensor, and that recreate at the human eye the compensated image of the fixation target produced by the phase compensator, to thereby provide the human eye with a view of compensation of the aberrations the human eye as estimated by the wavefront sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. An ophthalmic instrument comprising:
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a wavefront sensing mechanism that estimates the aberrations of the eyes of the patient; and
a phase compensating mechanism that operates, for each given prescription in a set of prescriptions that correspond to said aberrations, to generate a compensated image of a fixation target based upon the given prescription, to enable the eyes to view the correction specified by the given prescription. - View Dependent Claims (43, 44)
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45. An ophthalmic instrument comprising:
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a wavefront sensing mechanism that estimates the aberrations of the eyes of the patient; and
a phase compensating mechanism that operates, for each given corrective optic in a set of corrective optic that correspond to said aberrations, to generate a compensated image of a fixation target based upon the given corrective optic, to enable the eyes to view the correction provided by the given corrective optic. - View Dependent Claims (46, 47, 48)
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Specification